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Consider the following statements related to the merits of construction in structural steel: 1. Structural steel has high strength per unit weight as compared to RCC. 2. The steel members are slender or small in size as compared to RCC. 3. The steel structures are useful in the construction of tall buildings, long-span bridges, and airplane hangers. Which of the above statements are correct?
Compared to mild steel, cast iron has (i) High compressive strength (ii) High tensile strength (iii) Low compressive strength (iv) Low tensile strength
Compared to mild steel, cast iron has
(i) High compressive strength
(ii) High tensile strength
(iii) Low compressive strength
(iv) Low tensile strength
A material is a fatigue tested below the fatigue limit for few millions of cycles and then retested at higher than fatigue limit. This process is known as ___________
If the sample is tested for a large number of cycles below its fatigue limit and the stress is gradually increased above the fatigue limit, the true fatigue limit of material will _______
The influence of shape of aggregate in strength and workability of concrete are given below in statements S1, S2, S3 and S4. Which of the statements are correct? S1: Rounded aggregate produces concrete with high workability and low strength. S2: Angular aggregate produces concrete with high workability and low strength. S3: Rounded aggregate produces concrete with low workability and high strength. S4: Angular aggregate produces concrete with low workability and high strength.
With regard to the characteristic strength of concrete, consider the following statement: “Test strength of samples means the average strength of X samples. The strength of a sample should not vary by more than ± Y% of the average strength. What will be the values of X and Y here?
Which of the statement/s is /are correct about the steel sector in India? a) As of 2019, India is the 3rd largest producer of steel. b) The top producer of steel in the world China, accounts for almost 50% of the steel production. c) India’s steel policy 2017 envisages a target of 300MT by 2030.
In the question below, are given a statement followed by three courses of actions numbered I, II and III. On the basis of the information given, you have to assume everything in the statement to be true, and then decide which of the following suggested courses of actions logically follow(s) for pursuing. Statement: Specialty steel and wire ropes maker Usha Martin's decision to sell one of its core businesses - steelmaking - to prune outstanding debt, marks the rare instance of an Indian corporate borrower meeting its loan obligations through divestment. The slump sale is a milestone in the six-decade history of the Kolkata-based company, whose board on Saturday approved the divestment of its one million ton steel business in favor of Tata Steel for Rs 4,600 crore.  Courses of action: I. Proceeds will be used to ‘first repay existing lenders of the company’. Usha Martin will retain a profitable wire ropes unit as residual business, and has plans to scale it up significantly.  II. As part of the transaction, Usha Martin has entered into a five-year deal with The Tatas for sale of steel at market price to the wire-ropes business.  III. Usha Martin is among the top four wire rope players globally. With oil prices going up and strong trend in demand in Europe, the Ebitda in the wire-ropes business has improved. 
The material with higher stacking fault energy has higher fatigue strength whereas the material with lower stacking fault will have a lower fatigue limit.